When we say "someone is only human," we mean to acknowledge that everyone makes mistakes and has flaws. However, there are many synonyms for this phrase. One could say "to err is human," emphasizing that making mistakes is a natural part of being human. Another option is to say "we are all fallible," which emphasizes that no one is perfect. Alternatively, someone could say "nobody's perfect," which acknowledges that imperfection is universal. Other synonyms include "to be imperfect is to be human," and "we are all vulnerable." Ultimately, all of these phrases serve to remind us of our shared humanity and the importance of compassion and forgiveness.